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symmetric(al) 1 |
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plane shape |
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Divisible into essentially equal halves along one or more lines or planes. |
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tuberoid (root-stem) |
= dropper |
STRUCTURE |
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An axial outgrowth that descends from a bulb and eventually forms a new bulb; esp. in Orchidaceae. |
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wedge-shaped 2 |
= cuneate, obtriangular |
plane shape |
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Inversely triangular; like the outline of the broad lateral face of a wedge, broadest at the apex. See also obdeltate. |
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aristate 1 |
= awned, bristled |
apex |
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Bearing one or more aristae (awns, bristles, setae). |
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branchlet |
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STRUCTURE |
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A branch of the highest or ultimate order. |
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checkered 1 |
= tessellate |
coloration |
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Having a pattern of more or less regularly disposed square zones of contrasting hues and/or intensities. |
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mitriform |
= mitre-shaped |
solid shape |
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Broadest and transversely round to oval proximally, tapering bilaterally above the middle to a central peak; like a peaked hat or cap. |
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coroniform |
= crown-shaped |
solid shape |
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Shortly and broadly tubular overall, circumferentially continuous at the base, distally so or not; like a monarch's crown. |
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one-sided 1 |
= unilateral |
architecture |
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Having only one side, as compared with presumably equivalent, bilaterally symmetric structures. |
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petiolar |
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insertion |
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Upon or otherwise directly associated with the petioles. |
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epiphyllous |
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position |
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Upon the leaves, or partially adnate thereto and apparently arising therefrom. |
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pseudostem |
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STRUCTURE |
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A structure that resembles a stem but is not part of the axial system of a shoot, lacking anatomical differentiation into nodes and internodes. |
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habit |
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CHARACTER |
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General appearance and/or function, usually including explicit or implicit reference to one or more aspects of habitat or other features of the external environment; a logically imprecise traditional category of terms that overlaps conceptually with architecture, arrangement, duration, insertion, location, orientation, position, shape, and texture. |
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seriate |
= cyclic, verticillate, whorled |
arrangement |
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Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. |
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induplicate |
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aestivation |
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Basically valvate but with each member involute, the lateral abaxial surfaces of adjacent members contiguous. |
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squamella 1 pl. squamellae |
= squamule; < scale, trichome |
STRUCTURE |
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A diminutive squama (lepis). |
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vesicle |
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STRUCTURE |
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A small bladder-like part consisting of an enclosing wall or covering and an empty or fluid-filled interior, sometimes turgid; esp. in citrus fruits (hesperidia). |
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caudex pl. caudices |
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STRUCTURE |
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The short, persistent, thickened, more or less erect, main stem of a perennial plant that otherwise has annual stems. |
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median |
= central, medial |
position |
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At, upon, or closely ranged about the structural or symmetrical midpoint or axis. |
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connivent |
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arrangement |
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Converging and distally contiguous; esp. arcuate stamens with anthers contiguous. |
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oblong 2 |
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solid shape |
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Compressed-ellipsoid, the sides approximately parallel from near one end to near the other. See also ellipsoid(al). |
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penta… |
= five-… |
prefix |
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Indicating presence of or constitution by five entities of the type denoted by the term's stem; as in pentandrous, pentacarpellate, pentacolporate. |
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embryotega pl. embryotegae, embryotegas |
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STRUCTURE |
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A small, hardened, lid-like portion of the testa (seed coat) at the micropyle of some seeds, detaching at germination. |
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primary root |
> taproot |
STRUCTURE |
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The one, central root directly basal to a shoot, developing directly from the embryonic radicle; the first-formed root of a plant, being the only one truly central in nature (i.e., belonging to the original central axis of the plant). All other roots of a plant develop subsequently and are lateral in nature. The primary root may be permanently dominant, developing into a taproot; otherwise it may be transitory or become functionally subordinate, with secondary and/or adventitious roots becoming dominant. |
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fixation |
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CHARACTER |
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Mode of attachment to a supporting structure. |
